import java.io.*;
import java.util.*;


public class Main_yukicoder509 {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		char[] n = sc.next().toCharArray();

		int[] cnt = new int[10];
		for (char c : n) {
			cnt[c - '0']++;
		}

		int b = 1;
		int o = cnt[0] + cnt[4] + cnt[6] + cnt[8] * 2 + cnt[9];
		int g1 = cnt[1] + cnt[2] + cnt[3] + cnt[5] + cnt[7];
		int g2 = cnt[0] + cnt[4] + cnt[6] + cnt[8] + cnt[9];

		int min = Integer.MAX_VALUE;
		min = Math.min(min, g1 + g2 + o + b + g1 + g2);
		min = Math.min(min, b + o + g1 + g2 + o + b);
//		min = Math.min(min, g2 + o + b + g1 + g2 + b);

		pr.println(min);
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);

		solve();

		pr.close();
		sc.close();
	}

	private static class Printer extends PrintWriter {
		Printer(PrintStream out) {
			super(out);
		}
	}
}